1RF5
Structural Studies of Streptococcus pneumoniae EPSP Synthase in Unliganded State
Experimental procedure
| Experimental method | MAD |
| Source type | SYNCHROTRON |
| Source details | SSRL BEAMLINE BL9-2 |
| Synchrotron site | SSRL |
| Beamline | BL9-2 |
| Temperature [K] | 100 |
| Detector technology | CCD |
| Collection date | 2001-12-05 |
| Detector | ADSC QUANTUM 315 |
| Wavelength(s) | 0.992, 0.980, 0.9183 |
| Spacegroup name | P 21 21 21 |
| Unit cell lengths | 115.592, 116.482, 176.323 |
| Unit cell angles | 90.00, 90.00, 90.00 |
Refinement procedure
| Resolution | 10.000 - 2.300 |
| R-factor | 0.2209 |
| Rwork | 0.218 |
| R-free | 0.25400 * |
| Structure solution method | MAD |
| RMSD bond length | 0.047 |
| RMSD bond angle | 2.490 * |
| Data scaling software | SCALEPACK |
| Phasing software | SOLVE |
| Refinement software | X-PLOR (3.851) |
Data quality characteristics
| Overall | Outer shell | |
| Low resolution limit [Å] | 30.000 | 2.300 |
| High resolution limit [Å] | 2.200 | 2.200 |
| Rmerge | 0.036 * | 0.128 * |
| Total number of observations | 982621 * | |
| Number of reflections | 102641 | |
| Completeness [%] | 97.2 | 96.5 |
Crystallization Conditions
| crystal ID | method | pH | temperature | details |
| 1 | VAPOR DIFFUSION, HANGING DROP | 7.5 | 4 * | ammonium sulfate, NaCl, HEPES, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K |
Crystallization Reagents in Literatures
| ID | crystal ID | solution | reagent name | concentration (unit) | details |
| 1 | 1 | drop | protein | 60 (mg/ml) | |
| 2 | 1 | drop | Tris-HCl | 10 (mM) | pH7.5 |
| 3 | 1 | drop | 100 (mM) | ||
| 4 | 1 | reservoir | ammonium sulfate | 1.6 (M) | |
| 5 | 1 | reservoir | 0.1 (M) | ||
| 6 | 1 | reservoir | HEPES | 0.1 (M) | pH7.5 |
